Ingredients and Uses

6 Serious Side Effects Of Prunes You Must Know

6 Serious Side Effects Of Prunes You Must Know July 6, 2018

Also called dried plums (as they are made of dehydrated plums), prunes are high in nutrients and fiber. You can add them to your dessert or consume their juice – but remember to limit the quantity. The side effects of prunes, which we will discuss in this post, can be quite unpleasant. And you don’t want to experience them. Keep reading, and you will know what we are talking about.

What Are The Side Effects Of Prunes?

1. Dangers Of Acrylamide

Prunes contain a high concentration of acrylamide, which is considered a carcinogen and a neurotoxin (1). Acrylamide is not naturally found in normal food, except when it is cooked at temperatures above 100° C.

According to Food and Agriculture Organization, the amount of acrylamide required to cause neuropathic harm is about 500 times the daily dietary intake. So, consuming prunes is relatively safe. However, the carcinogenicity is a concern as prunes were found to be highly carcinogenic to the animals that were tested in labs.

2. Prunes Can Cause Diarrhea

Prunes Can Cause Diarrhea Pinit


The insoluble fiber in prunes can cause or worsen diarrhea. This is why you need to avoid them when you have diarrhea (2). There have also been certain cases of people who had experienced diarrhea post the ingestion of prunes and prune juice (3). This can be attributed to the laxative property of prunes. They are natural laxatives as they contain a laxative compound called sorbitol. So, an unregulated dose or having too many of these fruits can easily lead to diarrhea.

Some sources also talk about the dietary fructose intolerance found in many individuals, which can also lead to abdominal cramps and diarrhea. Prunes contain high amounts of sugar, which might trigger such a problem.

3. May Lead To Weight Gain

One serving of 6 uncooked prunes contains 137 calories and 22 grams of sugar. That sure is a little on the higher end. And a one-cup serving of prune juice contains about 185 calories. Though the fiber in the fruit can aid weight loss, taking them in excess can have the opposite effect.

Prunes also have a high glycemic load (how much any particular food will raise a person’s glucose levels post consumption) (4). This means consuming prunes can elevate your blood sugar levels more than most other fruits.

4. Can Cause Intestinal Gas And Bloating

Prunes contain complex carbohydrates and sugars that do not completely break down in the digestive tract (5). So, when the sugars reach the colon, the bacteria start feeding on these undigested carbohydrates.

These bacteria are responsible for intestinal gas and bloating. This can also lead to farting. You can take alpha-D-galactosidase before eating prunes as it reduces intestinal gas by breaking down the complex carbohydrates before they reach your gut.

5. May Lead To Laxative Dependency

Prunes are mostly used as irritant laxatives. However, those who suffer from frequent constipation should not rely on prunes completely to clear their digestive system. This can lead to laxative dependency after a certain period of usage, which can aggravate the condition and cause complications (6).

6. May Cause Dark Stools

Prunes are rich in iron and, like most iron-rich foods, can cause dark stools if taken in excess.

Prunes have their own set of side effects, but you can still consume them in moderation.

Hope you are now aware of the side effects of prunes. Let us know how this post has helped you. Simply leave a comment in the box below.


  1. “Acrylamide and cancer risk.” National Cancer Institute.
  2. “When you have diarrhea.” US National Library of Medicine.
  3. “Factitious diarrhea.” US National Library of Medicine.
  4. “Changes in intake of fruits and…” US National Library of Medicine.
  5. “Bloating 101: Why you feel bloated.” WebMD.
  6. “Constipation in older adults.” US National Library of Medicine.

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